CVE-2016-9637
7.5
HIGH
CVSS 3.1
EPSS 0.09%
Description
The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.
How to fix CVE-2016-9637
To remediate CVE-2016-9637, upgrade the affected package to a fixed version below.
- Debian/xen—upgrade to 4.4.0-1 or later
Is CVE-2016-9637 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.4.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |